- 体力劳动 tǐlìláodòng manual laborphysical labor
- 身体力行 shēntǐlìxíng practice personallyto practice what one preaches
- 流体力学 liútǐlìxué fluid mechanicsthe branch of physics that studies the mechanics of fluids (liquids, gases, and plasmas) and the forces acting on them
- 天体力学 tiāntǐlìxué celestial mechanicsthe study of the motions of celestial objects
